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2004 freestar 3.9 liter with lean codes bank one and two.
2004 freestar 3.9 liter with lean codes bank one and two. Most recently cranks and stalls right away, then runs with hesitation until warm. seems to run normal when warmed up, but still throwing leann… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
29,223 satisfied customers
ford freestar: have a 4.2 ford freestar, code p0352 comes up.
have a 4.2 ford freestar, code p0352 comes up. replaced coil, plugs,wires, intake manifold gaskets, crank shaft sensor, camshaft sensor, pcm. still rough idle then stalling. what are we missing… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
29,223 satisfied customers
Ford F150: the 4.2 V6..Spark plugs..plug wires..O2 sensors
For a Ford F150 with the 4.2 V6 with a 171 & 174 code for "lean burn" on both banks, what could be the root cause? Spark plugs, sp. plug wires and O2 sensors (all 4) have been replace.… read more
Steve
Steve
Ford tech Specializing in electronics
Vocational, Technical or Trade School
6,745 satisfied customers
2000 E 250 ford van with 4.2. The check engine light keeps coming on.
2000 E 250 ford van with 4.2. The check engine light keeps coming on. 2 codes came up 1 is lean bank one 2nd is rich bank one. Have new plugs and all 4 O2 sensors. Fuel mileage went down to 8 mpg and … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
ford: ,maf,fuel filter.Very poor acceleration just after warm up
ford 2002 4.2 code p0174.new dpfe.egr ,maf,fuel filter.Very poor acceleration just after warm up… read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
16,261 satisfied customers
1998 Ford Ranger: 4.0 ltr v-6..Manual trans. 170,000 miles
1998 Ford Ranger, 4.0 ltr v-6. Manual trans. 170,000 miles I was getting codes PO171 and 174 bank #1 and 2 running lean. I replaces the fuel injectors and now get codes PO172 and 175, bank #1and 2 run… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
2002 ford ranger: me the fuel is too lean on bank one and two
i have a 2002 ford ranger and my hand held decoder is tell me the fuel is too lean on bank one and two. how do i fix it?… read more
Marty
Marty
Vocational, Technical or Trade Scho
576 satisfied customers
f150: check engine light..o2 sensors..new plugs..plenum with cleaner
i have an 02 f150 4.2 and am chasing the lean codes on the check engine light. I have changed the egr sensor, cleaned the egr and tube, changed o2 sensors, new plugs and wires, changed fuel filter, al… read more
CTFordTech
CTFordTech
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Vocational, Technical or Trade Scho
4,894 satisfied customers
F-150: liter..it i misfiring while driving down the highway
have a 2oo2 frod f-150 with a 4.2 liter cuting out like it i misfiring while driving down the highway. olny codes are p0171 lean bank 1 p0174 lean bank 2 p1131 h02s11 lean p1151 hoss21 lean. any thoug… read more
CTFordTech
CTFordTech
Auto Technician
Vocational, Technical or Trade Scho
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2002 Ford F150 V6 4.2 Auto Trans. codes P0174 System to
2002 Ford F150 V6 4.2 Auto Trans. codes: P0174 System to Lean P0171 System to Lean P1151 Lack of H0251 Switches-Lean Bank 2 Sensor 1 P1131 Lack of H0351 Switches - Lean Bank 1 Sensor 1… read more
CTFordTech
CTFordTech
Auto Technician
Vocational, Technical or Trade Scho
4,894 satisfied customers
2004 Ford Freestar Limited: my engine light came..gasket..manifold
Today, my engine light came on in my 2004 Ford Freestar Limited. I took it in for service and they said the plenum gasket was blown out - they also said the manifold had to be removed to clean all the… read more
Jim
Jim
Vocational, Technical or Trade Scho
1,491 satisfied customers
Ford F150: V6..It shows that PO171 System too lean (cylinder bank no.1
Hi I scan a ford F150 V6 4.2 and It shows that PO171 System too lean (cylinder bank no.1) What is cylinder bank no.1 means Then it shows PO302 Cylinder no.2 misfire detected When I check the fuel pump… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
1999 ford f-150: 4.2..check engine lite..engine running..bank one
i have a 1999 ford f-150 with a 4.2 in it and i have a check engine lite on the code that comes up say engine running lean bank one what do i do to fix this problem… read more
mike v
mike v
Associate Degree
24 satisfied customers
2001 ford f150: system too lean..replaced mass air flow
i have a 2001 ford f150 i keep getting system too lean code i replaced mass air flow ,plug and wires any more… read more
SuperBob
SuperBob
Ford dealer senior master technician
Vocational, Technical or Trade Scho
2,603 satisfied customers
I have a 2001 Fored E-250. 163000 miles. 4.2 automatic.
I have a 2001 Fored E-250. 163000 miles. 4.2 automatic. I was geting egr insufficient flow and bank 1 sys lean and bank 2 sys lean codes. I replaced all 3 egr components and cleared codes. within 25 m… read more
4dwrench
4dwrench
Vocational, Technical or Trade Scho
91 satisfied customers
f150: easy way to find a vacum leak?..LEAN Did MA Sensor already..4.2L
What is a easy way to find a vacum leak? CE says bank 1&2 LEAN Did MA Sensor already. F150 4.2L… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
E-250: a 4.2 efi v-6. the truck..running good..check engine
I have a Ford Econline E-250 wit a 4.2 efi v-6. the truch was running good and the check engine lighr went on . I took the truck to ford and they said the intake manifold gasket was leaking air and e … read more
Mike V.
Mike V.
Auto Service Technician
Subaru and Nissan factory training.
28,540 satisfied customers
2003 F-150: 4x4..codes indicate both o2 sensers position 1..lean
I have 2003 F-150 4.2 4x4 codes indicate both o2 sensers position 1 are causing the engine to run lean. could there be a fuse blowen or are they protected… read more
Ray M90Ranger
Ray M90Ranger
Vocational, Technical or Trade Scho
140 satisfied customers
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Meet the Experts:

Ron

Ron

ASE Certified Technician

25,182 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

29,223 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Mike V.

Mike V.

Auto Service Technician

28,540 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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